137611990 has 32 divisors (see below), whose sum is σ = 264793536. Its totient is φ = 51363840.

The previous prime is 137611961. The next prime is 137612011. The reversal of 137611990 is 99116731.

137611990 is digitally balanced in base 2, because in such base it contains all the possibile digits an equal number of times.

It is a congruent number.

It is an unprimeable number.

It is a polite number, since it can be written in 15 ways as a sum of consecutive naturals, for example, 2134 + ... + 16726.

It is an arithmetic number, because the mean of its divisors is an integer number (8274798).

Almost surely, 2^137611990 is an apocalyptic number.

137611990 is a gapful number since it is divisible by the number (10) formed by its first and last digit.

137611990 is a deficient number, since it is larger than the sum of its proper divisors (127181546).

137611990 is a wasteful number, since it uses less digits than its factorization.

137611990 is an evil number, because the sum of its binary digits is even.

The sum of its prime factors is 14664.

The product of its (nonzero) digits is 10206, while the sum is 37.

The square root of 137611990 is about 11730.8136972676. The cubic root of 137611990 is about 516.2801470356.

It can be divided in two parts, 137611 and 990, that added together give a triangular number (138601 = T₅₂₆).

The spelling of 137611990 in words is "one hundred thirty-seven million, six hundred eleven thousand, nine hundred ninety".